Migration Manager was installed using the service account. When another users logs on to the console to access the project, upon the startup of Migration Manager an error is displayed:
Project CN=QMMADProject does not exist.
The user lacks the access to ADAM database where the project information is stored.
To provide access to the project for another account:
1) Log on to the console with account that was used to install originally and start Project Manager.
2) In the Migration Manager console right-click on the Migration Project (top of the tree), select Delegate and add the second account and give it the Full Admin role (do not forget to click add after selecting account).
3) Close the console and log off.
4) Log on using the second account and see if you can open the project successfully.
If it is not possible to track the account used to install ADAM and access to the projectis lost, please review the following article KB 26641 explaining how to gain it back:
Problems opening Migration Manager for AD (QMM) project in ADAM